803639-59-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 803639-59-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,0,3,6,3 and 9 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 803639-59:
(8*8)+(7*0)+(6*3)+(5*6)+(4*3)+(3*9)+(2*5)+(1*9)=170
170 % 10 = 0
So 803639-59-0 is a valid CAS Registry Number.